We have a n scale yard boss that the track is set up in an oval configuration with the figure 8 cross inside. We are using 2 right remote y's, 2 left remote y's, and a 60 degree crossover. When connected the train switches polarity when it goes into the cross, so how do we correct the problem? We have read about adding a jump wire where it goes into and out of the figure out, but wanted to know where to put it exactly. Any help would be appreciated.

We have purchased this set for our son for his birthday and trying to set up the track but can't find the layout listing what pieces we will need all help would be appreciated. He wants an oval track with a figure eight combined, so the crossing section will be in the oval with the sides connected. Right now we have curved, straight, and a left & right remote y.  We would like to keep it around 2' wide. Thanks for any help.